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U1000 Diagnostic Trouble Code Discussion for September 2006

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2002 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC524X2
U1000: Class 2 Communication Malfunction. ... vehicle per customer request for some electrical problems I could not verify with the warning lights on the dash would come on for no reason. I replaced the switch and now the car wont start.It cranks over but the injecters are shut down. I have 3 differen...
September 07, 2006
2003 Pontiac Grand Am SE 3.4L No Start VIN: 1G2NF52E93
U1000: Class 2 Communication Malfunction. This vehicle came into me on the hook. No crank no start. There was no mil light windows wouldn't work. It acted like it was in accessary not run or crank. Found bad wire to ignition switch, ran new wire vehicle started and everythig worked. Vehicle towed in f...
September 15, 2006
2001 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC52451
U1000: Class 2 Communication Malfunction. ... once, and I think more than once. Car turns over, no start most of the time. When I starts, it's fine with no problems. I get codes u1000 from all computers and u1016 from BCM. This points to PCM. I found water in the conduit...
September 27, 2006
2002 Nissan Altima S 2.5L MIL Lamp on VIN: 1N4AL11E12
U1000: Controller Area Network Line Malfunction. ... scanner found code U1000 CAN COMMUNICATION LINE.Using Mitchell On Demand found diagnostic procedure but with Snap On cannot pull up DATA MONITOR mode.I'm sure only Nissan CONSULT II is only scanner that will access info.Also could not find a TSB on Mitchel...
September 29, 2006